kometa: a nightly scheduled run against plex, its credentials as files

ace runs Kometa under HAL as a long-lived container whose own scheduler wakes
at 03:00, with the Plex token and the TMDb key in its environment
(KOMETA_PLEX_TOKEN, KOMETA_TMDB_APIKEY). This is the case ADR 0053 was written
for: the module is one container marked "schedule": "0 3 * * *" that runs
kometa --run to completion, so nothing stays up between runs.

Secrets are files (ADR 0086): config.yml is rendered by the mesh, 0600 and
root-owned (Kometa runs as root), with ${secret:plex-api} and ${secret:tmdb}
in it, and mounted read-only. KOMETA_READ_ONLY_CONFIG stops Kometa writing its
defaults back into it (without it the run dies on EROFS); the file already
carries every attribute Kometa filled in on ace, so behaviour is unchanged.

Plex is reached through provisioning, not a URL: kometa requires plex-api
and reads ${bound:plex-api:at|port}; the token is that pair's credential,
which the operator accepts (ADR 0092). The provider half (plex provides and
serves plex-api, 32400) is NOT in this change: plex is outside this work, so
until plex declares it kometa cannot be assigned. The TMDb key is an
operator-accepted vault secret.

Which libraries Kometa manages is per machine: the manifest ships
"libraries": {}, and config.yml is the module's one merge:json file, so the
assignment supplies them (ace: the Formula 1 library, whose metadata file
comes from f1-circuits' public name).

Verified: catalogue tests with MESH_CATALOGUE pointed here, on mesh-controller
main and on #149; a resolution with stub providers renders the binding, the
two secret files and config.yml with the assignment's library merged in; the
pinned digest (the one ace runs, 2.4.8) in a throwaway container with the
rendered file root-owned 0600 read-only: config parses, the "endpoints" key is
tolerated, no write-back with the read-only flag, and the run stops only at
TMDb refusing the dummy key.

modules/icecast/module.json

@@ -1,26 +1,6 @@
 {
   "module": "icecast",
   "version": "1",
-  "requires": [
-    "route",
-    "secret"
-  ],
-  "contributes": {
-    "route": {
-      "label": "icecast",
-      "endpoint": "stream"
-    }
-  },
-  "binds": {
-    "route": "${dir:state}/route.json"
-  },
-  "secrets": {
-    "secret": {
-      "source": "${dir:state}/source.secret",
-      "admin": "${dir:state}/admin.secret",
-      "relay": "${dir:state}/relay.secret"
-    }
-  },
   "capabilities": [
     "container-runtime"
   ],
@@ -37,7 +17,7 @@
       "port": 8000,
       "protocol": "tcp",
       "from": "mesh",
-      "why": "streams in from sources (HTTP PUT) and out to listeners, plus the status and admin pages; a public name is its route"
+      "why": "streams in from sources and out to listeners"
     }
   ],
   "resources": [
@@ -50,43 +30,28 @@
     {
       "id": "state",
       "type": "directory",
-      "mode": "0700",
-      "place": "."
+      "path": "/var/lib/icecast-module",
+      "mode": "0700"
     },
     {
-      "id": "logs",
-      "type": "directory",
-      "mode": "0700",
-      "owner": "100:101"
-    },
-    {
-      "id": "server-conf",
+      "id": "server-env",
       "type": "file",
-      "path": "${dir:state}/icecast.xml",
+      "path": "/var/lib/icecast-module/server.env",
       "mode": "0600",
-      "content": "<icecast>\n    <!-- Written by the mesh (modules/icecast). Passwords arrive as secrets rendered into this file,\n         never as environment: the image's entrypoint seds ICECAST_* variables into the file only\n         when they are set, and none are. -->\n    <location>Earth</location>\n    <admin>icemaster@localhost</admin>\n    <limits>\n        <clients>100</clients>\n        <sources>2</sources>\n        <queue-size>524288</queue-size>\n        <client-timeout>30</client-timeout>\n        <header-timeout>15</header-timeout>\n        <source-timeout>10</source-timeout>\n        <burst-on-connect>1</burst-on-connect>\n        <burst-size>65535</burst-size>\n    </limits>\n    <authentication>\n        <source-password>${secret:source}</source-password>\n        <relay-password>${secret:relay}</relay-password>\n        <admin-user>admin</admin-user>\n        <admin-password>${secret:admin}</admin-password>\n    </authentication>\n    <!-- The name icecast writes into playlists (.m3u/.xspf: http://<hostname>:<port>/<mount>) and\n         would announce to YP (none configured). A machine's own name belongs to its assignment, and\n         an assignment merges only into JSON; this XML cannot take it, so the neutral default stays. -->\n    <hostname>localhost</hostname>\n    <listen-socket>\n        <port>8000</port>\n    </listen-socket>\n    <http-headers>\n        <header name=\"Access-Control-Allow-Origin\" value=\"*\" />\n    </http-headers>\n    <fileserve>1</fileserve>\n    <paths>\n        <basedir>/usr/share/icecast</basedir>\n        <logdir>/var/log/icecast</logdir>\n        <webroot>/usr/share/icecast/web</webroot>\n        <adminroot>/usr/share/icecast/admin</adminroot>\n        <alias source=\"/\" destination=\"/status.xsl\"/>\n    </paths>\n    <logging>\n        <accesslog>access.log</accesslog>\n        <errorlog>error.log</errorlog>\n        <loglevel>3</loglevel>\n        <logsize>10000</logsize>\n    </logging>\n    <security>\n        <chroot>0</chroot>\n        <!-- Starts as root, reads this 0600 root-owned file, then drops to the image's icecast user\n             (uid 100, group icecast 101) before serving. -->\n        <changeowner>\n            <user>icecast</user>\n            <group>icecast</group>\n        </changeowner>\n    </security>\n</icecast>\n"
-    },
-    {
-      "id": "net",
-      "type": "network",
-      "name": "icecast"
+      "content": "ICECAST_SOURCE_PASSWORD=${secret:source}\nICECAST_ADMIN_PASSWORD=${secret:admin}\nICECAST_RELAY_PASSWORD=${secret:relay}\nICECAST_ADMIN_USERNAME=admin\n"
     },
     {
       "id": "server",
       "type": "container",
       "name": "icecast",
       "image": "infiniteproject/icecast@sha256:cd506cf3dfe31ce05fd37d7e672dbd1213e7255cc93d28ecf5a3b547af4e162c",
-      "network": "icecast",
+      "env-file": [
+        "/var/lib/icecast-module/server.env"
+      ],
       "ports": [
         "8000"
       ],
-      "volumes": [
-        "${dir:state}/icecast.xml:/etc/icecast.xml:ro",
-        "${dir:logs}:/var/log/icecast"
-      ],
-      "restart-on": [
-        "server-conf"
-      ]
+      "secrets-in-environment": "the image seds ICECAST_*_PASSWORD into icecast.xml and has no _FILE; convertible by mounting a generated icecast.xml, not yet done"
     },
     {
       "id": "runtime-config",
@@ -100,14 +65,14 @@
       "id": "runtime",
       "type": "container",
       "name": "mesh-icecast",
-      "network": "icecast",
+      "network": "host",
       "volumes": [
         "/var/lib/mesh/icecast/broker:/run/secrets/broker:ro",
         "/var/lib/mesh/icecast/config.json:/run/config/config.json:ro"
       ],
       "env": {
         "MESH_BROKER_FILE": "/run/secrets/broker",
-        "MESH_ICECAST_URL": "http://icecast:8000",
+        "MESH_ICECAST_URL": "http://127.0.0.1:8000",
         "MESH_ICECAST_CONFIG_FILE": "/run/config/config.json"
       },
       "restart-on": [
@@ -136,5 +101,15 @@
         "from": "Dockerfile"
       }
     ]
+  },
+  "requires": [
+    "secret"
+  ],
+  "secrets": {
+    "secret": {
+      "source": "/var/lib/icecast-module/source.secret",
+      "admin": "/var/lib/icecast-module/admin.secret",
+      "relay": "/var/lib/icecast-module/relay.secret"
+    }
   }
 }

modules/kometa/module.json

@@ -0,0 +1,66 @@
+{
+  "module": "kometa",
+  "version": "1",
+  "capabilities": [
+    "container-runtime"
+  ],
+  "requires": [
+    "plex-api",
+    "secret"
+  ],
+  "binds": {
+    "plex-api": "${dir:state}/plex-api.json"
+  },
+  "secrets": {
+    "plex-api": "${dir:state}/plex-api.secret",
+    "secret": {
+      "tmdb": "${dir:state}/tmdb.secret"
+    }
+  },
+  "resources": [
+    {
+      "id": "state",
+      "type": "directory",
+      "mode": "0700",
+      "place": "."
+    },
+    {
+      "id": "config",
+      "type": "directory",
+      "mode": "0700"
+    },
+    {
+      "id": "settings",
+      "type": "file",
+      "path": "${dir:state}/config.yml",
+      "mode": "0600",
+      "merge": "json",
+      "content": "{\n  \"plex\": {\n    \"url\": \"http://${bound:plex-api:at}:${bound:plex-api:port}\",\n    \"token\": \"${secret:plex-api}\",\n    \"timeout\": 60,\n    \"clean_bundles\": false,\n    \"empty_trash\": false,\n    \"optimize\": false,\n    \"verify_ssl\": null,\n    \"db_cache\": null\n  },\n  \"tmdb\": {\n    \"apikey\": \"${secret:tmdb}\",\n    \"language\": \"en\",\n    \"cache_expiration\": 60,\n    \"region\": null\n  },\n  \"settings\": {\n    \"cache\": true,\n    \"cache_expiration\": 60,\n    \"asset_directory\": \"config/assets\",\n    \"sync_mode\": \"append\",\n    \"minimum_items\": 1,\n    \"delete_below_minimum\": false,\n    \"run_again_delay\": 2,\n    \"show_missing\": false,\n    \"save_report\": false,\n    \"run_order\": [\n      \"operations\",\n      \"metadata\",\n      \"collections\",\n      \"overlays\"\n    ],\n    \"asset_folders\": true,\n    \"asset_depth\": 0,\n    \"create_asset_folders\": false,\n    \"prioritize_assets\": false,\n    \"dimensional_asset_rename\": false,\n    \"download_url_assets\": false,\n    \"show_missing_assets\": true,\n    \"show_missing_season_assets\": false,\n    \"show_missing_episode_assets\": false,\n    \"show_asset_not_needed\": true,\n    \"default_collection_order\": null,\n    \"item_refresh_delay\": 0,\n    \"delete_not_scheduled\": false,\n    \"missing_only_released\": false,\n    \"only_filter_missing\": false,\n    \"show_unmanaged\": true,\n    \"show_unconfigured\": true,\n    \"show_filtered\": false,\n    \"show_unfiltered\": false,\n    \"show_options\": false,\n    \"tvdb_language\": \"default\",\n    \"ignore_ids\": null,\n    \"ignore_imdb_ids\": null,\n    \"playlist_sync_to_users\": null,\n    \"playlist_exclude_users\": null,\n    \"playlist_report\": true,\n    \"custom_repo\": null,\n    \"overlay_artwork_filetype\": \"webp_lossy\",\n    \"overlay_artwork_quality\": 90,\n    \"auto_sort_hubs\": null,\n    \"verify_ssl\": true\n  },\n  \"libraries\": {}\n}\n"
+    },
+    {
+      "id": "net",
+      "type": "network",
+      "name": "kometa"
+    },
+    {
+      "id": "run",
+      "type": "container",
+      "name": "kometa",
+      "image": "kometateam/kometa@sha256:6c3971a4aaa928b045e5f22514196b6db7f9b2b186158ebfe3239f4b328dfb0a",
+      "network": "kometa",
+      "schedule": "0 3 * * *",
+      "args": [
+        "--run"
+      ],
+      "env": {
+        "TZ": "Etc/UTC",
+        "KOMETA_NO_MISSING": "true",
+        "KOMETA_READ_ONLY_CONFIG": "true"
+      },
+      "volumes": [
+        "${dir:config}:/config",
+        "${dir:state}/config.yml:/config/config.yml:ro"
+      ]
+    }
+  ]
+}